124) Rivets are generally specified by

125) The edges of a boiler plate are bevelled to an angle of

126) Which of the following is a permanent fastening ?

127) In order to avoid tearing of the plate at edge, the distance from the center line of the rivet hole to the nearest edge of the plate in terms of dia. of rivet d should be equal to

128) If the tearing efficiency of a riveted joint is 75%, then the ratio of diameter of rivet to the pitch is equal to